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Patented July 18, 18828.,

ITI/ g lo N lllllliit G. E. TAFT.

SPINDLE AND BEARING THENENOR..

:Figi

(No Model.)

UNITED STATES PATENT OFFICE.

GUSTAVU'S E. TAFT, OE WHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO THEWHITIN MACHINE WORKS, OF SAME PLACE.

SPINDLE AND BEARING THEREFOR.

SPECIFICATION forming part of Letters Patent No. 261,275, dated July 18,1882.

Application filed April 20, 1882. (No model.)

` To all whom it may concern:

Be it known that I, GUsTAVUs E. TAFT, a citizen of the United States,residing at Whitinsville, in the county ot' Worcester and State ofMassachusetts, have invented certain new and useful Improvements inSpindles and Bearings therefor, of which the following is aspeciiication.

My invention relates to spindles and bearings therefor used in spinningne yarns; and the objects of my improvements are, iirst, to provide thespindle with a combined bolster and lstep having a springy stem withwhich no packing will be required for said spindle to run true anduniformly; second, to alibrd facilities for the proper adjustment of thecombined bolster and step in relation to the bolster-case.

I attain these objects by the constructionillustrated in theaccompanying drawings, in which- Y Figure 1 is a vertical section,showing a spindle, its bolster, step, and bolster -case constructedaccording to my invention. Fig. 2 is a vertical section through thebolster, the step, and its springy stem. Fig. 3 is a vertical sectionthrough the case or holder constructed to receive the bolster-step andspringy stem.

Heretofore many attempts have been made to prevent the jarring,wabbling, or uneasy motion of running spindles caused by any inequalityof bobbin or yarn load on the spindle, and thus reduce the wear of thebearings, the most common method being by means of elastic packing orsprings placed around the bolster; but their properties seldom'last forany length of time. By my construction no packing is required, and themeans used to give `elasticity and freedom of adjustment to the istransmitted to the spindle. Y This spindle is Vsupported sidewise by thebolster B and end- These parts B B areA Wise by the step B. formed inone piece, and are provided with a springy stem, B2, secured to thelower end of the step or formed integral therewith. These parts B B B2above mentioned are inclosed in a deep bolster-case, C, having aseries-of chamv ameter ofsuch size as to fit the outside of the bolsterat its largest part b. The part bis a narrow belt of bearing-surfaceapproximately opposite the position occupied by the Whirl a' when thespindle is secured upon its step. Above and under this part b thesurface of the bolster tapers sufliciently to allow the spindle and`bolster t0 adjust themselves to the axial center of the load on thespindle, and at the lower end ofthe part b, where it joins thebolster-tube b', there is produced a shoulder, bit, to Vsupport thebolster. At the lower end of the chamber c there is formed in thebolstercase a shoulder-seat, c', to support the bolster at that point.The chamber c2, formed in the bolster-case under the internal collar orshoulder seat, c', is of larger diameter than any of the other chambersformed therein, and can contain a two or three months7 supply of oil.Under the chamber or oil-reservoir c2 the internal bore, c3, of thebolster-case is of suitable size to limit the motion of the lower end ofthe bolster-tube b or the step B', and the size of thisybore governs it,so there will not be motion enough to havethe springy stem injured byany jerk or allow it to yield more than is desirable.

Bronze being regarded as the best metal for bearings, I generallyconstruct the combined bolster and step of that metal and the springstemB2 of steel, and unite the parts by means of a line screw-thread cutupon the upper end of said stem. The lower end, b2, of the stern B2 isof such a diameter as to make a close sliding t in the bottom of thebolster-case, and it is forked -or slotted to straddle a pin, c, securedin the interior of said bolster-case, to keep the bolster from rotatingunder the impulse of the Ispindle. The pendent springy stem B2 is ofsuitable size and elasticity to bend under a side pressure applied tothe spindle, so that the bolster and step connected with the springystem may adjust themselves to any deflection of spindle from its normalalignment, thus preventing wabbling or vibrating motion ot' the spindle.The bolster, its step, and the stem B2 may be made in one piece, ofsteel or other suitable metal.

The bolster-caseC is secured to the spinningframe rail D by a nut, E,put on the threaded part thereof. It is east in one piece, so that nooil canleak out at the bottom, and when covered bythe whirl no dust canget in at the top. To supply the spindle-bearings with oil, the hookedwire c is turned from over the whirl, the spindle with its whirl isremoved7 and oil is poured in at tbetop of the bolster and finds its Waythrough the openings fin the bolster to the upper beariugofthe spindle,and through the openings g in the bolster-tube b to the step of thespindle.

Having now fullydescribed my invention, I claiml. The combination of abolstercase having a closed bottom with a combined bolster and stepprovided with a light springy stem secured to or bearing against thebottom of the said case, substantially as and for the purpose described.

2. The combination ot' a bolster-case,pr0 vided with superposed chambersof different diameters, with a combined bolster and step having only anarrow belt fitting in the upper chamber ot thc case, and providedwitha. light springy stem secured at its lower end to the sides of thelower chamber of the said case, substantially as and for the purposedescribed.

3. The combination ot' a bolster-case bored centrullyto producecommunicating chambers of different diameters, an internal shoulderseat,c', and a closed bottom, with a combined bolster and step provided withit bearing, b, having a double conical periphery above and under saidbearing, and shouldered to rest upon the shoulder-seat c', and :tpendent springy stem having its lower end secured to the said case,substantially as and for the purpose set forth.

4. The combination of a livespindle, provided with a sleeve and whirl,with a bolstercase haring a chamber, c3, of such diameter as wil. limitthe motion ofthe step, as described, au internal oil-chamber, c2, and acombined bolster and step provided with side perforatious and a pendentspriugy stem, substantiall'v as and for the purpose set forth.

GUSTAVUS E. TAFT.

Witnesses:

G. MARs'roN XVHITIN, HENRY B. OsGooD.

